Naval Observatory Astronomer Using 12-inch Alvan Clark Telescope, 1892, Alvan Clark

The original finding aid described this photograph as: country: unknown release status: released to public. Collection: National Archives at College Park - Still Pictures. PH2 (AC) Scott M. Allen Washington, D.C....An astronomer operates the restored 12-inch Alvan Clark telescope (built in 1892) at the U.S. Naval Observatory. The Naval Observatory's t - DPLA - f4b328b3f18d13b1ebbe2d58b653d4ae